August 27, 2010. Raleigh, North Carolina.. Faces of amateur Halo 3 players as they compete.. Major League Gaming (MLG), the league for professional videogame players, held their 50th Pro Circuit competition at the Raleigh Convention Center, with gamers from all over the country coming to for 3 days of competition in Halo 3, Tekken 6, Super Smash Bros. Brawl, Starcraft 2 and World of Warcraft.